免费文档转换器
在 DOCX、DOC、ODT、RTF 和 HTML 之间转换文档，将其转换为 PDF，或将 PDF 转换回可编辑的 Word 文档。
来自
To
DOCX
The standard Microsoft Word document. Opens in Word, Google Docs, and virtually every modern office suite.
DOC
The classic Word format from before 2007. Still around in older archives and tools that never moved to DOCX.